→ To begin, set up a simple circuit using a battery, a bulb with connecting wires, and alligator clips (if available). The circuit should have a gap where different materials can be tested.
→ Next, take each classroom material—such as a metal ruler, plastic pen, wooden pencil, paper clip, rubber eraser, and piece of paper—and place it in the circuit gap. Observe whether the bulb lights up or not.
→ If the bulb lights up, the material is a conductor, allowing electricity to flow through it easily; examples include metal rulers and paper clips. Conversely, if the bulb does not light up, the material is an insulator, hindering the flow of electricity; examples include plastic pens, wooden pencils, rubber erasers, and paper. By testing various materials, you can effectively categorize them based on their ability to conduct electricity.